Assessment of natural radioactivity and radiological risk of sediment samples in Karacaören II dam Lake, Isparta/Turkey

Year 2019, NSP2018 Special Issue, 28 - 35, 28.03.2019

Gökhan Apaydın , Oğuz Kağan Koksal , Erhan Cengız , Engin Tırasoglu , Hasan Baltaş , Kazım Karabulut Ömer Söğüt

Abstract

This research aimed
to assess natural radioactivity levels in lake sediment of Karacaören II Dam.
In this study sediment samples were collected from 12 station of lake in May,
2016. The natural radionuclides ²²⁶Ra, ²³²Th and ⁴⁰K were measured with a coaxial
HPGe detector (Canberra, GC 1519 model) of 15% relative efficiency and a
resolution of 1.9 keV at the 1332 keV gamma of ⁶⁰Co. In order to assess the radiological hazards resulting from natural
radioactivity, radium equivalent activities (Ra_eq), absorber dose rate (D), internal (H_in)
and external (H_ex) hazard index,
annual effective dose rate (AED) and
Excess life time cancer risk (ELCR)
were calculated and compared with recommended values of international
organizations.

Keywords

Karacaören II Dam Lake , Sediment , Natural Radioactivity , Absorber Dose Rate

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